text: /**
    ******************************************************************************
    * @file    stm32f3xx_hal_gpio.h
    * @author  MCD Application Team
    * @version V1.0.1
    * @date    18-June-2014
    * @brief   Header file of GPIO HAL module.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
    *
    * Redistribution and use in source and binary forms, with or without modification,
    * are permitted provided that the following conditions are met:
    *   1. Redistributions of source code must retain the above copyright notice,
    *      this list of conditions and the following disclaimer.
    *   2. Redistributions in binary form must reproduce the above copyright notice,
    *      this list of conditions and the following disclaimer in the documentation
    *      and/or other materials provided with the distribution.
    *   3. Neither the name of STMicroelectronics nor the names of its contributors
    *      may be used to endorse or promote products derived from this software
    *      without specific prior written permission.
    *
    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
    * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
    * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    *
    ******************************************************************************  
    */
  
  /* Define to prevent recursive inclusion -------------------------------------*/
  #ifndef __STM32F3xx_HAL_GPIO_H
  #define __STM32F3xx_HAL_GPIO_H
  
  #ifdef __cplusplus
   extern "C" {
  #endif
  
  /* Includes ------------------------------------------------------------------*/
  #include "stm32f3xx_hal_def.h"
  
  /** @addtogroup STM32F3xx_HAL_Driver
    * @{
    */
  
  /** @addtogroup GPIO
    * @{
    */ 
  
  /* Exported types ------------------------------------------------------------*/ 
  
  /** 
    * @brief   GPIO Init structure definition  
    */
  typedef struct
  {
    uint32_t Pin;       /*!< Specifies the GPIO pins to be configured.
                             This parameter can be any value of @ref GPIO_pins_define */
  
    uint32_t Mode;      /*!< Specifies the operating mode for the selected pins.
                             This parameter can be a value of @ref GPIO_mode_define */
  
    uint32_t Pull;      /*!< Specifies the Pull-up or Pull-Down activation for the selected pins.
                             This parameter can be a value of @ref GPIO_pull_define */
  
    uint32_t Speed;     /*!< Specifies the speed for the selected pins.
                             This parameter can be a value of @ref GPIO_speed_define */
  
    uint32_t Alternate;  /*!< Peripheral to be connected to the selected pins 
                              This parameter can be a value of @ref GPIOEx_Alternate_function_selection */
  }GPIO_InitTypeDef;
  
  /** 
    * @brief  GPIO Bit SET and Bit RESET enumeration 
    */
  typedef enum
  {
    GPIO_PIN_RESET = 0,
    GPIO_PIN_SET
  }GPIO_PinState;
  #define IS_GPIO_PIN_ACTION(ACTION) (((ACTION) == GPIO_PIN_RESET) || ((ACTION) == GPIO_PIN_SET))
  
  /* Exported constants --------------------------------------------------------*/
  
  /** @defgroup GPIO_Exported_Constants GPIO_Exported_Constants
    * @{
    */
  
  /** @defgroup GPIO_pins_define GPIO_pins_define
    * @{
    */
  #define GPIO_PIN_0                 ((uint16_t)0x0001)  /* Pin 0 selected    */
  #define GPIO_PIN_1                 ((uint16_t)0x0002)  /* Pin 1 selected    */
  #define GPIO_PIN_2                 ((uint16_t)0x0004)  /* Pin 2 selected    */
  #define GPIO_PIN_3                 ((uint16_t)0x0008)  /* Pin 3 selected    */
  #define GPIO_PIN_4                 ((uint16_t)0x0010)  /* Pin 4 selected    */
  #define GPIO_PIN_5                 ((uint16_t)0x0020)  /* Pin 5 selected    */
  #define GPIO_PIN_6                 ((uint16_t)0x0040)  /* Pin 6 selected    */
  #define GPIO_PIN_7                 ((uint16_t)0x0080)  /* Pin 7 selected    */
  #define GPIO_PIN_8                 ((uint16_t)0x0100)  /* Pin 8 selected    */
  #define GPIO_PIN_9                 ((uint16_t)0x0200)  /* Pin 9 selected    */
  #define GPIO_PIN_10                ((uint16_t)0x0400)  /* Pin 10 selected   */
  #define GPIO_PIN_11                ((uint16_t)0x0800)  /* Pin 11 selected   */
  #define GPIO_PIN_12                ((uint16_t)0x1000)  /* Pin 12 selected   */
  #define GPIO_PIN_13                ((uint16_t)0x2000)  /* Pin 13 selected   */
  #define GPIO_PIN_14                ((uint16_t)0x4000)  /* Pin 14 selected   */
  #define GPIO_PIN_15                ((uint16_t)0x8000)  /* Pin 15 selected   */
  #define GPIO_PIN_All               ((uint16_t)0xFFFF)  /* All pins selected */
  
  #define GPIO_PIN_MASK              ((uint32_t)0x0000FFFF) /* PIN mask for assert test */
  
  #define IS_GPIO_PIN(PIN)           (((PIN) & GPIO_PIN_MASK) != (uint32_t)0x00)
  /**
    * @}
    */
  
  /** @defgroup GPIO_mode_define GPIO_mode_define
    * @brief GPIO Configuration Mode 
    *        Elements values convention: 0xX0yz00YZ
    *           - X  : GPIO mode or EXTI Mode
    *           - y  : External IT or Event trigger detection 
    *           - z  : IO configuration on External IT or Event
    *           - Y  : Output type (Push Pull or Open Drain)
    *           - Z  : IO Direction mode (Input, Output, Alternate or Analog)
    * @{
    */ 
  #define  GPIO_MODE_INPUT                        ((uint32_t)0x00000000)   /*!< Input Floating Mode                   */
  #define  GPIO_MODE_OUTPUT_PP                    ((uint32_t)0x00000001)   /*!< Output Push Pull Mode                 */
  #define  GPIO_MODE_OUTPUT_OD                    ((uint32_t)0x00000011)   /*!< Output Open Drain Mode                */
  #define  GPIO_MODE_AF_PP                        ((uint32_t)0x00000002)   /*!< Alternate Function Push Pull Mode     */
  #define  GPIO_MODE_AF_OD                        ((uint32_t)0x00000012)   /*!< Alternate Function Open Drain Mode    */
  
  #define  GPIO_MODE_ANALOG                       ((uint32_t)0x00000003)   /*!< Analog Mode  */
      
  #define  GPIO_MODE_IT_RISING                    ((uint32_t)0x10110000)   /*!< External Interrupt Mode with Rising edge trigger detection          */
  #define  GPIO_MODE_IT_FALLING                   ((uint32_t)0x10210000)   /*!< External Interrupt Mode with Falling edge trigger detection         */
  #define  GPIO_MODE_IT_RISING_FALLING            ((uint32_t)0x10310000)   /*!< External Interrupt Mode with Rising/Falling edge trigger detection  */
  
  #define  GPIO_MODE_EVT_RISING                   ((uint32_t)0x10120000)   /*!< External Event Mode with Rising edge trigger detection               */
  #define  GPIO_MODE_EVT_FALLING                  ((uint32_t)0x10220000)   /*!< External Event Mode with Falling edge trigger detection              */
  #define  GPIO_MODE_EVT_RISING_FALLING           ((uint32_t)0x10320000)   /*!< External Event Mode with Rising/Falling edge trigger detection       */
    
  #define IS_GPIO_MODE(MODE) (((MODE) == GPIO_MODE_INPUT)              ||\
                              ((MODE) == GPIO_MODE_OUTPUT_PP)          ||\
                              ((MODE) == GPIO_MODE_OUTPUT_OD)          ||\
                              ((MODE) == GPIO_MODE_AF_PP)              ||\
                              ((MODE) == GPIO_MODE_AF_OD)              ||\
                              ((MODE) == GPIO_MODE_IT_RISING)          ||\
                              ((MODE) == GPIO_MODE_IT_FALLING)         ||\
                              ((MODE) == GPIO_MODE_IT_RISING_FALLING)  ||\
                              ((MODE) == GPIO_MODE_EVT_RISING)         ||\
                              ((MODE) == GPIO_MODE_EVT_FALLING)        ||\
                              ((MODE) == GPIO_MODE_EVT_RISING_FALLING) ||\
                              ((MODE) == GPIO_MODE_ANALOG))
  
  /**
    * @}
    */
                                                           
  /** @defgroup GPIO_speed_define GPIO_speed_define
    * @brief GPIO Output Maximum frequency
    * @{
    */  
  #define  GPIO_SPEED_LOW         ((uint32_t)0x00000000)  /*!< Low speed     */
  #define  GPIO_SPEED_MEDIUM      ((uint32_t)0x00000001)  /*!< Medium speed  */
  #define  GPIO_SPEED_HIGH        ((uint32_t)0x00000003)  /*!< High speed    */
  
  #define IS_GPIO_SPEED(SPEED) (((SPEED) == GPIO_SPEED_LOW)  || ((SPEED) == GPIO_SPEED_MEDIUM) || \
                                ((SPEED) == GPIO_SPEED_HIGH))
  /**
    * @}
    */
  
   /** @defgroup GPIO_pull_define GPIO_pull_define
     * @brief GPIO Pull-Up or Pull-Down Activation
     * @{
     */  
  #define  GPIO_NOPULL        ((uint32_t)0x00000000)   /*!< No Pull-up or Pull-down activation  */
  #define  GPIO_PULLUP        ((uint32_t)0x00000001)   /*!< Pull-up activation                  */
  #define  GPIO_PULLDOWN      ((uint32_t)0x00000002)   /*!< Pull-down activation                */
  
  #define IS_GPIO_PULL(PULL) (((PULL) == GPIO_NOPULL) || ((PULL) == GPIO_PULLUP) || \
                              ((PULL) == GPIO_PULLDOWN))
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /* Exported macro ------------------------------------------------------------*/
  
  /**
    * @brief  Checks whether the specified EXTI line flag is set or not.
    * @param  __EXTI_LINE__: specifies the EXTI line flag to check.
    *         This parameter can be GPIO_PIN_x where x can be(0..15)
    * @retval The new state of __EXTI_LINE__ (SET or RESET).
    */
  #define __HAL_GPIO_EXTI_GET_FLAG(__EXTI_LINE__) (EXTI->PR & (__EXTI_LINE__))
  
  /**
    * @brief  Clears the EXTI's line pending flags.
    * @param  __EXTI_LINE__: specifies the EXTI lines flags to clear.
    *         This parameter can be any combination of GPIO_PIN_x where x can be (0..15)
    * @retval None
    */
  #define __HAL_GPIO_EXTI_CLEAR_FLAG(__EXTI_LINE__) (EXTI->PR = (__EXTI_LINE__))
  
  /**
    * @brief  Checks whether the specified EXTI line is asserted or not.
    * @param  __EXTI_LINE__: specifies the EXTI line to check.
    *          This parameter can be GPIO_PIN_x where x can be(0..15)
    * @retval The new state of __EXTI_LINE__ (SET or RESET).
    */
  #define __HAL_GPIO_EXTI_GET_IT(__EXTI_LINE__) (EXTI->PR & (__EXTI_LINE__))
  
  /**
    * @brief  Clears the EXTI's line pending bits.
    * @param  __EXTI_LINE__: specifies the EXTI lines to clear.
    *          This parameter can be any combination of GPIO_PIN_x where x can be (0..15)
    * @retval None
    */
  #define __HAL_GPIO_EXTI_CLEAR_IT(__EXTI_LINE__) (EXTI->PR = (__EXTI_LINE__))
  
  /**
    * @brief  Generates a Software interrupt on selected EXTI line.
    * @param  __EXTI_LINE__: specifies the EXTI line to check.
    *          This parameter can be GPIO_PIN_x where x can be(0..15)
    * @retval None
    */
  #define __HAL_GPIO_EXTI_GENERATE_SWIT(__EXTI_LINE__) (EXTI->SWIER |= (__EXTI_LINE__))
  
  /* Include GPIO HAL Extension module */
  #include "stm32f3xx_hal_gpio_ex.h"
  
  /* Exported functions --------------------------------------------------------*/ 
  /* Initialization and de-initialization functions *****************************/
  void              HAL_GPIO_Init(GPIO_TypeDef  *GPIOx, GPIO_InitTypeDef *GPIO_Init);
  void              HAL_GPIO_DeInit(GPIO_TypeDef  *GPIOx, uint32_t GPIO_Pin);
  
  /* IO operation functions *****************************************************/
  GPIO_PinState     HAL_GPIO_ReadPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
  void              HAL_GPIO_WritePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, GPIO_PinState PinState);
  void              HAL_GPIO_TogglePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
  HAL_StatusTypeDef HAL_GPIO_LockPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
  void              HAL_GPIO_EXTI_IRQHandler(uint16_t GPIO_Pin);
  void              HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin);
  
  /**
    * @}
    */ 
  
  /**
    * @}
    */ 
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* __STM32F3xx_HAL_GPIO_H */
  
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  